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3Com OfficeConnect 3C892 Setting Up

Made by: 3Com
Type: Setting Up
Category: Modem
Pages: 14
Size: 0.32 MB

 

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This note describes how to configure the ISDN LAN modem on a static 
network. If you have not determined whether your network is static, refer to 
the 

 

Getting Started Guide.

 

 

 

Installing the ISDN 
LAN Modem

 

If you have not already installed the ISDN LAN modem, refer to the diagram 
while following the steps.

Before you begin, power down the computer you will connect to your ISDN 
LAN modem.

 

1

 

Insert one end of the Ethernet cable into a 10BASE-T LAN port and then 
connect the opposite end of the Ethernet cable to your computer’s Ethernet 
port.

 

Caution:

 

 

 

Only connect one computer to the ISDN LAN modem until after 

you have finished the configuration process. After configuration, you can 
connect any additional computers and/or printers which you would like to 
add to your LAN. Also, do not connect the ISDN LAN modem to an existing 
LAN.

 

2

 

Connect the RJ-45 (8-pin) connector end of the RJ-45/RJ-11cable labeled 
ISDN to the port labeled ISDN and then connect the other end to the RJ-11 
ISDN wall jack.

 

3

 

If you are connecting analog equipment, connect one end of an RJ-11 cable 
(provided with your analog device) into one of the RJ-11 modular jacks 

RESET

ISDN 

1   PHONE 

2

10-18 VDC

0• 8A MAX

1

3

4

2

       4           3    LAN     2       1       

 


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labeled Phone and then connect the other end of the RJ-11 connector into 
the appropriate RJ-11 port on the analog device.

 

4

 

Connect the power cable from the wall power module into the back panel 
of the ISDN LAN modem and then plug the other end into a 
110 VAC outlet. Use of a surge-protected outlet strip is recommended.

The Power LED illuminates. The indicator LEDs on the front panel flash 
momentarily as the unit undergoes a power-up self-test diagnostic. The ISDN 
LED flashes.

 

5

 

Turn on your computer which is connected to the ISDN LAN modem. 

 

6

 

Once your computer is started, the LAN Status LED will flash and then 
illuminate green, indicating that the port to which your computer is 
connected is ready for use and that proper communication between your 
computer and the ISDN LAN modem has been established.

This completes the installation process. Refer to “Setting Up TCP/IP for 
Windows and Macintosh” to continue.

 

Setting Up TCP/IP for 
Windows and 
Macintosh 

 

This chapter describes how to setup the Windows and Macintosh operating 
system (OS) TCP/IP stack. Your computer must have a TCP/IP stack in order to 
use the ISDN LAN modem. If you already have TCP/IP installed and set up on 
your computer, then go on to “Configuring the ISDN LAN Modem”. These 
instructions vary depending upon which operating system you are using. Refer 
to the appropriate section.

 

 

TCP/IP Setup Using Windows 95

 

 

TCP/IP Setup Using Windows NT 4.0

 

 

TCP/IP Setup Using Mac OS 7.6 or later

 

 

TCP/IP Setup Using Windows 3.11

 

TCP/IP Setup Using

Windows 95

 

Windows 95 provides TCP/IP as part of its standard operating system. To set up 
TCP/IP for the ISDN LAN modem, do the following.

 

You may be prompted for your Windows 95 installation disks or CD-ROM.

 

1

 

From the Control Panel, double click 

 

Network

 

.

The Network dialog box appears.

 

2

 

Click 

 

Add

 

.

The Select Network Component Type dialog box appears.

 

Figure 1  

 

Select Network Component Type Dialog Box

 


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Setting Up TCP/IP for Windows and Macintosh

 

3

 

3

 

Select 

 

Protocol

 

 and then click 

 

Add

 

.

The Select Network Protocol dialog box appears.

 

Figure 2  

 

Select Network Protocol Dialog Box

 

4

 

From the Manufacturers list box, select 

 

Microsoft

 

, and then from the Network 

Protocols list box, select 

 

TCP/IP

 

.

 

5

 

Click 

 

OK

 

.

 

6

 

From the Network Configuration list box, select 

 

TCP/IP

 

 and then click 

 

Properties

 

.

 

Figure 3  

 

Network Dialog Box

 

7

 

Select 

 

IP Address

 

.

The IP Address dialog box appears.

 

8

 

For static IP addresses, 

 

Specify an IP Address

 

 should be selected and an IP 

address and subnet mask for your computer should be entered. (You can obtain 
this information from your system administrator or ISP.)

 

9

 

Select 

 

Advanced

 

 and then check the box to set TCP/IP as the default protocol.

 


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10

 

Click 

 

OK

 

 to close the TCP/IP Properties dialog box.

 

11

 

Click 

 

OK

 

 to close the Network dialog box.

 

Figure 4  

 

Advanced Parameters of TCP/IP Properties

 

12

 

Restart Windows 95 to let these changes take effect.

 

TCP/IP Setup Using

Windows NT 4.0

 

Windows NT 4.0 provides TCP/IP as part of its standard operating system. If you 
have not already set up TCP/IP, do the following. 

 

You will need your Windows NT 4.0 installation CD-ROM.

 

1

 

From the Control Panel, double click 

 

Network

 

.

The Network dialog box appears.

 

2

 

Select the 

 

Protocols

 

 tab, as shown in Figure 5.

 


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Setting Up TCP/IP for Windows and Macintosh

 

5

 

Figure 5  

 

Windows NT Protocols Configuration Window

 

3

 

Click 

 

Add

 

.

The Select Network Protocol window appears as shown in Figure 6.

 

Figure 6  

 

Select Network Protocol Window

 

4

 

Select 

 

TCP/IP Protocol

 

 and then click 

 

OK

 

.

The following message appears.

 

Figure 7  

 

DHCP Message Box

 

5

 

Select 

 

No

 

.

 


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6

 

You are then prompted to insert your installation CD-ROM. Insert the Windows 
NT 4.0 CD ROM and then click Continue.

If you have Remote Access Service (RAS) installed on your PC after the 
appropriate files are copied to your PC, a message box asks whether or not you 
would like TCP/IP installed for RAS. If you select 
Yes, you must select the device 
you want to access remotely and then click 
Close

After the appropriate files are copied to your PC, you will see TCP/IP Protocol 

listed in the Network Protocols group box, as shown in Figure 8.

Figure 8  Network Protocols Window

Click Close.

The Microsoft TCP/IP Properties window appears.

From the Adapter drop down list box, select the Ethernet card that is connected 

to the ISDN LAN modem.

10 For static IP addresses, Specify an IP Address should be selected and an IP 

address and subnet mask for your computer should be entered. (You can obtain 
this information from your system administrator or ISP.) 

11 Click OK.

12 Click Yes to restart your PC and allow the changes to take effect.

TCP/IP Setup Using

Windows 3.11

If you are using Windows 3.11, a TCP/IP stack is not provided as part of the 
operating system. If you do not have a TCP/IP stack, you can use MS _TCP 
which is provided on the 3Com Companion Programs CD-ROM.

Setting up TCP/IP Using MS TCP

To set up MS_TCP, do the following.

Install MS_TCP, located on the 3Com Companion Programs CD-ROM, onto your 

hard drive. 

 


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Setting Up TCP/IP for Windows and Macintosh

7

From the Program manager, click Network.

From the Network group box, click Network Setup.

Figure 9  Network Group Box

From the Network Setup dialog box, click the Drivers button.

From the Network Drivers dialog box, click Add Protocol.

Select Unlisted or Update Protocol and then click OK.

From the Install Driver dialog box, enter the path to the MS_TCP directory. 

For example, if you installed MS TCP on your C: drive in a directory called 
MSTCP, you would enter C:\MSTCP.

Select MS TCP/IP-32.X and then click OK to install.

After the installation is complete, click Close.

10 Click

 OK.

11 From the MS TCP/IP Configuration dialog box, check the Auto Configuration 

check box and then click OK.

12 Restart your PC to allow the changes to take effect.

 


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Configuring the ISDN 
LAN Modem

This section describes how to configure the ISDN LAN modem for the typical 
configuration. The typical configuration provides the basic set up and it includes 
what most users need to get up and running. It provides instructions for setting 
up your ISDN line and connecting to the Internet for a static network. 

Before You Begin

Before you configure the ISDN LAN modem, you should have already done the 
following:

Installed the hardware as described in “Installing the ISDN LAN Modem”. 

Installed and set up TCP/IP up on all computers you intend to connect to the 
ISDN LAN modem. If TCP/IP is not installed and set up, refer to “Setting Up 
TCP/IP for Windows and Macintosh”.

CAUTION: You should only have one computer physically connected to the 
ISDN LAN modem during configuration. Once you complete the configuration 
process, connect any other computers you would like to have on the LAN.

Telephone number(s) for your ISDN line provided by your telephone 
company. 

If you want to set up a connection to an ISP, you will also need the 
telephone number to call for access to your ISP, as well as your user name, 
password and DNS address (if your service provider requires a DNS address to 
be configured).

Setting Up Your

Computer

Because your computer has a static IP address, you must verify and possibly 
change some settings on your computer before you begin the configuration 
procedure. The ISDN LAN modem must be your gateway to get outside of your 
LAN and one of your DNS servers. Follow the procedure in the appropriate 
section to make sure that this is the case.

For Windows 95 Users

From the Start menu, select Settings and then Control Panel

Double-click Network and then select TCP/IP

If you have multiple TCP/IP entries, select TCP/IP for the Ethernet card associated 
with the ISDN LAN modem.

Click Properties and then select the Gateway tab and write down the first IP 

address in the Installed Gateways list.

Click on the DNS Configuration tab. 

In the DNS Server Search Order edit box, enter the Gateway IP address you 

wrote down as part of the previous step and then click Add.

Click OK to close the TCP/IP Properties box.

Click

 OK to close the Network control panel.

You are asked to restart your computer.

Click OK.

 


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Configuring the ISDN LAN Modem

9

For Windows NT 4.0 Users

From the Start menu, select Settings and then Control Panel

Double-click Network and then select the Protocols tab.

Highlight TCP/IP and then click Properties,

Click the IP Address tab and then select the Ethernet card associated with the 

ISDN LAN modem from the Adapter drop down list box. 

Write down the IP address in the Installed Gateways box.

Click on the DNS tab. 

Click Add.

In the TCP/IP DNS Server box, enter the Gateway IP address you wrote down as 

part of the previous step and then click Add.

Click OK to close the Microsoft TCP/IP Properties dialog box.

10 Click OK to close the Network Control Panel box.

You are asked to restart your computer.

11 Click OK.

For Macintosh Users

From the Apple menu, open Control Panels. Double-click TCP/IP.

Choose Ethernet from the Connect Via pop-up menu, if not already chosen.

The Configure drop-down list box should be set to Manually if you are on a 
Static network.

Note the series of numbers entered in the Router address box. Write this 

number down.

Enter this number into the Name server addr. Box. 

If you already have existing address(es) listed, add the new address below the 
last entry.

Choose File and Close

When asked to save your changes, do so by choosing Save.

You may want to rename this configuration so that your previous configuration 
is not overwritten.

For Windows 3.11 Users

From the Program Manager, double click the Network program group icon.

Double click the Network Setup icon.

Click the Drivers button.

Highlight the Microsoft TCP/IP - 32.X entry and click Setup.

Note the Default Gateway address. Write this number down. 

Click the DNS tab.

Enter the Default Gateway address from the previous step into the Domain 

Name Service (DNS) Search Order box and click Add.

Click OK to close the Microsoft TCP/IP Connectivity Configuration screen.

 


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Click OK to close the Microsoft TCP/IP Configuration screen.

10 Close the Network Drivers window.

11 Click OK to close the Network Setup window.

You will be asked to restart your computer. 

12 Click OK to do so.

You are now ready to configure your ISDN LAN modem. Refer to “Configuring 
the ISDN LAN Modem for the Typical Configuration” to continue.

Configuring the ISDN

LAN Modem for the

Typical Configuration

To configure the ISDN LAN modem for the typical configuration, do the 
following. You may need the IP address which you recorded previously in the 
“Setting Up Your Computer”section.

Launch your Web browser.

The ISDN LAN modem attempts to use its default IP address to communicate 
with the computer. If communication cannot be established, the ISDN LAN 
modem will change its default IP address. If this occurs, the ISDN LAN modem 
will reset itself and then function as described in this section.

Regardless of the start page to which your Web browser is set, your Web 
browser will go to the ISDN LAN modem configuration set up. 

A welcome message appears, as shown in Figure 10.

Figure 10  Initial Set Up Welcome Window

Click Continue.

 


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Configuring the ISDN LAN Modem

11

The Set Password window appears. This password is used to guard access to the 
ISDN LAN modem’s configuration program. If you would like to restrict access to 
the configuration program, select a password and record it in a safe place.

Enter a password in the Password field and then enter the same password in 

the Password (repeat) field to confirm it.

If do not wish to enter a password, leave the fields empty and then click 
Submit.

Click Submit.

A message box indicates that your password has been set. The SPID Wizard 
window appears.

Figure 11  SPID Wizard Window

If you do not want to use the SPID Wizard, click Abort and then Click Yes to 
confirm that you want to abort the SPID Wizard program. The ISDN LAN 
modem configuration main page appears. Refer to the
 OfficeConnect ISDN LAN 
Modem User Guide for instructions on configuring your ISDN connection 
manually. 

Enter the first telephone number for your ISDN line.

If you have another telephone number associated with your ISDN line, enter it 

in the second telephone number field. Otherwise, leave this field blank.

Click Continue

The SPID Wizard configures the switch type and SPIDs of your ISDN line. When 
the SPID Wizard is done, the ISP Wizard appears.

 


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Figure 12  ISP Wizard Window

If you do not want to use the ISP Wizard, click Abort. The ISDN LAN modem 
configuration main page appears. Refer to the
 OfficeConnect ISDN LAN Modem 
User Guide for instructions on configuring your ISP connection manually. 

In the Name field, enter the name of your ISP.

In the Telephone Number field, enter the telephone number of your ISP.

10 In the User ID and Password fields, enter your user ID and password for your ISP 

account.

11 If your ISP requires a DNS address, enter it in the Primary field under DNS IP 

Address(es).

12 Specify how you want the bandwidth allocated for this connection.

You can choose always to use just one B channel for this connection, always to 
use two B channels for this connection (that is, always use Multilink PPP), or you 
can specify that you only want the second B channel added when the first 
B channel reaches a certain threshold you have defined. The threshold default is 
60%. To change the threshold default, refer to the OfficeConnect ISDN LAN 
Modem User Guide
.

13 Specify the B channel rate or select TollMizer.

TollMizer sends a 56 Kbps data call over a voice circuit allowing you to save the 
typical cost difference between a voice and data call. Note that the destination 
you are calling must also support this feature (also referred to as Switched 56 
Permissive or Data Over Voice).

Leave the B channel rate set to 64 Kbps unless your telephone company and 
the locations you will be connecting to only support 56 Kbps.

 


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Configuring the ISDN LAN Modem

13

14 Click Continue.

A call is launched to your ISP. A congratulations message appears when you 
successfully connect to your ISP. This verifies the correct configuration of your 
ISDN line and ISP connection. 

If you cannot access a Web site and your computer has a static IP address, refer 
to “Configuring a Static IP Address on the ISDN LAN Modem”. 

This configuration covers the typical parameters needed to connect to your ISP. 
There are additional parameters for this ISP connection which have been set to 
a typical default. These parameters include Domain Name, Compression, NAT, 
and WAN Link IP Address. In addition, you can enter a second telephone for 
connection to your ISP. For information on these parameters and instructions for 
changing their default values, refer to the
 OfficeConnect ISDN LAN Modem 
User Guide.

15 Click Continue to connect to the ISDN LAN modem Web site where you should 

register the product and view the ReadMe file which contains the latest 
information. 

Bookmark this URL for all the latest, up to date information about your ISDN 
LAN modem (http://www.remoteaccess.3com.com/support/docs/lanmodem).

If the ISDN LAN modem does not detect any activity over this connection that 
was just established, it starts a 15 minute timer after which the call is 
disconnected. To change the this timer, refer to the
 OfficeConnect ISDN LAN 
Modem User Guide.

Configuring a Static IP

Address on the ISDN

LAN Modem

If you followed the steps in “Configuring the ISDN LAN Modem for the Typical 
Configuration” and were not able to connect to a Web site and your computer 
has a static IP address, there may be an incompatibility between the IP address 
on your computer and the IP address on the ISDN LAN modem. To correct this, 
do the following.

Enter the following URL in your Web browser http://lanmodem/mainpage.

From the ISDN LAN modem’s main configuration page click on the ISDN LAN 

Modem icon in the illustration.

The LAN (Ethernet) Parameters page appears.

In the IP Address field, enter the default gateway address you entered as 

described in “Setting Up Your Computer”.

Click Submit.

The ISDN LAN modem will reset. Once it resets, launch your Web browser and 
then click refresh. The Enter Password window appears.

Enter your password and then click Submit.

The ISDN LAN modem’s main configuration page appears.

Click the ISP Wizard button.

You will see the information you entered previously. 

Click Continue.

 


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A call is launched to your ISP. A congratulations message appears when you 
successfully connect to your ISP. This verifies the correct configuration of your 
ISDN line and ISP connection. 

This configuration covers the typical parameters needed to connect to your ISP. 
There are additional parameters for this ISP connection which have been set to 
a typical default. These parameters include Domain Name, Compression, NAT, 
and WAN Link IP Address. In addition, you can enter a second telephone for 
connection to your ISP. For information on these parameters and instructions for 
changing their default values, refer to the 
OfficeConnect ISDN LAN Modem 
User Guide.

Click Continue to connect to the ISDN LAN modem Web site where you should 

register the product and view the ReadMe file which contains the latest 
information. 

Bookmark this URL for all the latest, up to date information about your ISDN 
LAN modem (http://www.remoteaccess.3com.com/support/docs/lanmodem).

Configure Additional

Parameters

If you would like to configure another ISP or configure a connection to a 
remote office do the following. If you are using the ISDN LAN modem custom 
Web browser, click Configure Modem to configure additional parameters. If 
you are not using the ISDN LAN modem Web browser, enter the following URL: 
http://lanmodem/mainpage.

For advanced configuration and other ISDN LAN modem details, refer to the 
OfficeConnect ISDN LAN Modem User Guide. The Advanced Configuration 
section of the OfficeConnect ISDN LAN Modem User Guide describes how to 
connect to private networks such as a remote office LAN and provides 
instructions for changing default settings. You should follow the typical 
configuration steps first so that you can have your ISDN line parameters set up 
before you configure the advanced parameters.

Rev. 09/15/97